SOLUTION: A boy got 50% of the questions on a test correct. If he had 10 questions correct out of the first 12, and 1/4 of the remaining questions correct, how many questions were on the tes

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Question 427721: A boy got 50% of the questions on a test correct. If he had 10 questions correct out of the first 12, and 1/4 of the remaining questions correct, how many questions were on the test?

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Let x represent the number of questions on the test

Question states***

 .50x = 10 + 1/4(x-12)

Solving for x

  1/2x = 10 + 1/4x - 3

   2x = 40 + x - 12

    x = 28 questions on the test



CHECKING our Answer***

 14 = 10 + 1/4(16)